Patents by Inventor Yoshio Uenoyama

Yoshio Uenoyama has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method and apparatus for melt spinning
    Patent number: 4670202
    Abstract: In a melt spinning operation, a heated wash gas such as nitrogen or nitrogen and air is blown across the melt spinning nozzles to remove volatiles thereby preventing wetting of the nozzle discharge. The wash gas is maintained at a temperature substantially equal to the melt spinning temperature. The preferred melt spinning material is petroleum pitch.
    Type: Grant
    Filed: February 21, 1984
    Date of Patent: June 2, 1987
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Yoshio Uenoyama, Kiyoshi Takazawa, Takayuki Izumi
  • Apparatus and method of heating melt spinning head structure
    Patent number: 4663096
    Abstract: A melt spinning head structure is heated by use of a low melting point fusible alloy, preferably a binary-quaternary eutectic composition.
    Type: Grant
    Filed: October 22, 1985
    Date of Patent: May 5, 1987
    Assignee: Toa Nenryo Kogyo, K.K.
    Inventors: Yoshio Uenoyama, Kiyoshi Takazawa